How to Use SharePlay on iOS 15 with Apple TV

SharePlay on iOS 15 enables users to watch movies and television shows together in sync over a FaceTime call using the Apple TV app. This feature transforms isolated viewing into a shared virtual watch party by synchronizing playback states across all participants' devices while dynamically balancing call audio with media sound. This guide details how SharePlay functions under the hood, the system requirements for streaming, and how synchronized controls operate during a call.

How SharePlay Synchronizes Media Playback

SharePlay relies on Apple's GroupActivities framework rather than traditional screen mirroring. When a user starts a video in the Apple TV app while on an active FaceTime call, the system establishes a synchronized session across all connected devices.

Instead of broadcasting a single user's video feed to the group—which would consume immense bandwidth and degrade picture quality—SharePlay instructs each participant's device to stream the content directly from Apple's servers. The framework constantly exchanges low-latency playback metadata (timecodes, play/pause states, and track scrubbing) over the FaceTime connection. This ensures that every viewer's stream remains aligned to the exact millisecond, regardless of variations in internet speeds.

Requirements for Streaming Apple TV via SharePlay

To use SharePlay for Apple TV content, all participating users must meet specific software and account conditions:

  • Operating System: Devices must run iOS 15.1 or later (as SharePlay was enabled in the 15.1 update), iPadOS 15.1, or tvOS 15.1.
  • Content Access: Every participant must have an active subscription to Apple TV+ or individual access to the specific content being streamed (such as rented or purchased titles from the iTunes Store). Content protected by Digital Rights Management (DRM) cannot be mirrored to users who do not hold a valid license.
  • FaceTime Connection: An ongoing FaceTime audio or video call is required to maintain the shared session.

The In-Call Experience and Picture-in-Picture

When media begins streaming, the FaceTime video automatically transitions to a Picture-in-Picture (PiP) window. This allows users to view their friends' reactions without obscuring the playback screen.

SharePlay also utilizes smart volume management. When a participant speaks on the FaceTime call, the Apple TV app automatically ducks (lowers) the media audio so conversation remains intelligible, then raises the media volume back to its original level once the person finishes speaking.

Universal Playback Controls

In a SharePlay session, playback control is entirely decentralized:

  • Shared Control: Any participant on the call can pause, play, rewind, or fast-forward the media.
  • Instant Sync: When one user taps "Pause," the command is instantly transmitted to every connected device, halting playback for everyone at the exact same frame.
  • Personalized Settings: While playback timing is synchronized, individual settings such as closed captions, audio languages, and local volume levels remain completely customizable for each viewer.

Streaming to Apple TV Hardware

While the session is initiated on an iPhone running iOS 15, users can hand off the video to an Apple TV 4K or Apple TV HD connected to a television. By using the Control Center on the Apple TV box, users can transfer the video feed to the big screen while keeping the FaceTime call and camera active on the iPhone, maintaining high-definition synchronized playback in a home theater setting.